ds.list | R Documentation |
This is similar to the R function list
.
ds.list(x = NULL, newobj = NULL, datasources = NULL)
x |
a character string specifying the names of the objects to coerce into a list. |
newobj |
a character string that provides the name for the output variable
that is stored on the data servers. Default |
datasources |
a list of |
If the objects to coerce into a list are for example vectors held in a matrix or a data frame the names of the elements in the list are the names of columns.
Server function called: listDS
ds.list
returns a list of objects for each study that is stored on the server-side.
DataSHIELD Development Team
## Not run:
## Version 6, for version 5 see the Wiki
# connecting to the Opal servers
require('DSI')
require('DSOpal')
require('dsBaseClient')
builder <- DSI::newDSLoginBuilder()
builder$append(server = "study1",
url = "http://192.168.56.100:8080/",
user = "administrator", password = "datashield_test&",
table = "CNSIM.CNSIM1", driver = "OpalDriver")
builder$append(server = "study2",
url = "http://192.168.56.100:8080/",
user = "administrator", password = "datashield_test&",
table = "CNSIM.CNSIM2", driver = "OpalDriver")
builder$append(server = "study3",
url = "http://192.168.56.100:8080/",
user = "administrator", password = "datashield_test&",
table = "CNSIM.CNSIM3", driver = "OpalDriver")
logindata <- builder$build()
connections <- DSI::datashield.login(logins = logindata, assign = TRUE, symbol = "D")
# combine the 'LAB_TSC' and 'LAB_HDL' variables into a list
myobjects <- c('D$LAB_TSC', 'D$LAB_HDL')
ds.list(x = myobjects,
newobj = "new.list",
datasources = connections)
# clear the Datashield R sessions and logout
datashield.logout(connections)
## End(Not run)
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